Memory leak in Linux kernel - CVE-2026-23236
Published: March 4, 2026
Vulnerability identifier: #VU123540
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-23236
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the ufx_ops_ioctl() function in drivers/video/fbdev/smscufx.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2026-23236
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/061cfeb560aa3ddc174153dbe5be9d0b55eb7248
- https://git.kernel.org/stable/c/0634e8d650993602fc5b389ff7ac525f6542e141
- https://git.kernel.org/stable/c/120adae7b42faa641179270c067864544a50ab69
- https://git.kernel.org/stable/c/1c008ad0f0d1c1523902b9cdb08e404129677bfc
- https://git.kernel.org/stable/c/52917e265aa5f848212f60fc50fc504d8ef12866
- https://git.kernel.org/stable/c/6167af934f956d3ae1e06d61f45cd0d1004bbe1a
- https://git.kernel.org/stable/c/a0321e6e58facb39fe191caa0e52ed9aab6a48fe
- https://git.kernel.org/stable/c/f1e91bd4efeae48b0f42caed7e8ce2e3a0d05b02